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Letterman: No. 74,844, dated February 25, 186e.

IMPROVED snow-lances.

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TO ALL WHOM IT MAY CONCERN:

Beit known that I, GEORGFE PLACE, of the city of New York, in the county and State of New York, have nventeda new and improved machine for the purpse of clearing the snowoii` ot'irailroads, which machine I entitle a Combined Snow-Breaker and Snow'Ploughs; and I do hereby declarethat the following is a full and exact description thereof, reference being had to the accompanying drawings, and `to the letters of reference inarke'dl thereon. v

The nature of my invention consists of two distinct features or parts, 'to wit, rst, in providing a set of knives or hreakers,`to cut or break the snow up in front of a locomotive or car; and second, in providing a. set of two or more ploughs, arranged, one over the other, in a way so that the upper and forward plough or ploughs will move,`from over the track, the upperlayer or layers of Snow before the lowerplough has reached the sameposition of advancement that the upper plough or ploughs have, thus leaving for the lower plough only a part of the snow to remove. p

To enable others to make use of my invention, I will proceed to describelthe preciseconstruction and operatio`n of the whole machine. i i v i In the accompanying drawings, like letters of reference represent like parts.I V

Plate 1. Figures land 2 show a front andside elevation, respectively, of the knives or breakers, and the combined snow-ploughs attached to the'front part of the locomotive, whileFigure 3 shows a sectional plan of the knives or breakers and the'ploughsA Plate 2 shows, in gs. 1, 2, and 3, respectively, a front and side elevation and plan ofthe knives and ploughs complete, combined and attached to a car, which may bc an ordinary platform-car, or we may build a car expressly therefor, the car being pushed forward by locomotives on steam-roads, or drawn by horses on'horse-railroads, or otherwise. Figure'd; showsaplanot the knives and ploughs only, where .the knives are arranged in a dii'erent way. p

A A A and B'B B, tc., are vertical and horizontal knives or breakers, which mayor may not be made sharp. They are fastened by the pieces O`C C, &c., to the frnt of the locomotive EE, &c., or to thepi'eces E E, &c., of the car provided therefor. i I

D D D, die., are the snow-ploughs, and may be one, two, or three, as we require. I prefer, usually, two ploughs, set one over the other, the upper onebeing set considerablyin advance voi' the lower one, and if three are used, the upper one, which I designate as the third plough, must be set in advance of the middleone, which I call the second plough, and the middle or second plough must be set in advance of lower or iirst plough.

The action of this machine is this: Thel locomotive or earrE E, 85o., with the knives A A, B B, 5to., and ploughs D D, Btc., attached thereto, is moved along over the road by horse steam, or other power, forcing the knives A A, -B B, &c., through the hard, stiff snow, and cutting or breaking the snow up in chunks or pieces, so that the ploughs D D, dto., may more 4easily be moved through the snow for the purpose of clearing it oil` the track; and for the purpose oi' still further reducing the work ofthe ploughs, I prefer to use two or three ploughs', arranged one above another, as show nin the drawings. The uppermost plough is set considerably in advance of the others, 'so as to clear vthe snow oi` the track down to a point even with the plane of its base, or even with its lower cutting-edge, so the ploughs'heloiv'it will have lessl to do, and the lower plough will, in any case, only have to remove so much ofthe snow as lies-below the lower cutting-edgeof the mould-board of the plough next above it. n

The mould-board ci' the second, or second and`third ploughs, if three are used, sho-nld be shaped so as to throw oif the snow easily, and in such a way as to be as much as is practicable out of the way ofthe snow which is being thrown out by the'lower plough. For this purpose, therear of the mould-board may be raised up higher at the bottom than it otherwise would be.' The mould-boards may be curved, and made of Wood or metal. I prefer boiler-iron, .bent to required form 'and suitably supported.

The knives A A, tc., may he set vertically, or inclined as we wish, with their edges in one plane, as shown in iig. 3, or in twoplanes, as shown in 'g. 4, or in such other position as practice shall prove best.

The knives A and Bare best made of thin iron or steel plates, suitably supported, or of flat bars.

The supports C C, Snc., are best made of bars of iron, either at or round. The knives may be used either With or without the ploughs, but I prefer to use them with ploughs, which become necessary whenever there is much snow in the way. We may use with theknives one plough or several,

asl have described.

Having thus described my invention, what I claim, aud desire to secure hy Letters Patent, is- The combination and arrangement of the knives A A and B Bin sections, when combined with one or more ploughs, attached to the truck-frame, and with the frames E E E of the truck, in the manner and for the purpose therein described.

GEORGE PLACE.

Witnesses:

A. H. EMERY, GaAs. PLAGE. 

